We’ve all been there. That “perfect candidate” we hired just doesn’t work out for whatever reason and we’re left ruing the decision and trying to manage the fallout that might happen afterwards. Depending on the person this can take all forms including a loss in sales, staff disagreement, management time in re-performing tasks, even legal costs if things get ugly.
Sometimes it just comes down to having the wrong person in the wrong position. This may not always be obvious - if a staff member is struggling to perform tasks they can sometimes be very good at disguising the problem. Rather than just admitting they are unable to cope they deal with the matter in a variety of ways that may seem to have nothing to do with the issue - arriving late to work, low productivity, arguing with fellow staff members - it can show up in a myriad of ways.